The blocks have a gray outline

Thank you for your report!
However, this issue is Invalid.

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I edited the report

Thank you for your report!
We're actually already tracking this issue in MC-1794, so I resolved and linked this ticket as a duplicate.

If you would like to add a vote and any extra information to the main ticket it would be appreciated.

If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.

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can you tell me what the report is

how I solve the problem?